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* 2007-01-29 Martin Hunt <hunt@redhat.com>hunt2007-01-291-0/+1
| | | | | | | | | | * alloc.c (_stp_kmalloc): New function. Call kmalloc with the coirrect flags and track usage. (_stp_kzalloc): Ditto. * map.c: Use new alloc calls. * print.c: Ditto. * stat.c: Ditto. * time.c: Ditto.
* 2006-12-06 Josh Stone <joshua.i.stone@intel.com>jistone2006-12-071-27/+36
| | | | | | | | | | | | | | | | | | | | | PR 3623. * tapsets.cxx (timer_derived_probe_group::emit_module_decls): Restart the timers if we are in STARTING or RUNNING state. (hrtimer_derived_probe_group::emit_module_decls): Ditto. (be_derived_probe_group::emit_module_init): indicate error to the rest of the initialization if any begin probes fail. * translate.cxx (c_unparser::emit_module_init): Set the global error state on an initialization error so timers know to shut down. runtime/ * time.c (stp_timer_reregister): Add a global to control whether the gettimeofday timer should restart itself, for clean shutdown. (__stp_time_timer_callback): Check the global. (_stp_kill_time, _stp_init_time): Set the global. (_stp_gettimeofday_ns): Switch to preempt_enable_no_resched. * time.c (__stp_time_cpufreq_callback): Use the cpu# from the notifier. (_stp_init_time): No need to disable preemption around cpufreq init.
* 2006-10-09 Josh Stone <joshua.i.stone@intel.com>jistone2006-10-091-1/+18
| | | | | | | From David Wilder <dwilder@us.ibm.com> * time.c (__stp_estimate_cpufreq): Short-circuit on s390. (_stp_gettimeofday_ns): Use a fixed formula on s390 to convert TOD clocks to nanoseconds.
* 2006-09-26 Martin Hunt <hunt@redhat.com>hunt2006-09-261-16/+21
| | | | | | | * time.c (_stp_init_time): Use dynamic percpu allocations instead of evil static allocations. (_stp_kill_time): Free percpu allocations and set _stp_time to NULL so the timers are only deleted once.
* 2006-09-20 Josh Stone <joshua.i.stone@intel.com>jistone2006-09-201-32/+52
| | | | | | | | | | | | | | | | | | | | | | | | PR 3233 ./ * stapfuncs.5.in: Document new gettimeofday_ns. runtime/ * time.c (stp_time_t): Use ns for the base time, and freq is now kHz. (__stp_estimate_cpufreq): Compute kHz instead of MHz. (__stp_time_timer_callback, __stp_init_time): Compute base in ns. (__stp_time_cpufreq_callback): Record kHz instead of MHz. (_stp_init_time): Record kHz, and disable preemption to avoid a race in the cpufreq notifier. (_stp_gettimeofday_ns): Converted from _stp_gettimeofday_us. tapset/ * timestamp.stp (gettimeofday_ns): New function (gettimeofday_us, gettimeofday_ms, gettimeofday_s): Use gettimeofday_ns as the base unit. testsuite/ * buildok/timestamp.stp: add gettimeofday_ns test.
* 2006-07-14 Josh Stone <joshua.i.stone@intel.com>jistone2006-07-141-12/+29
| | | | | | | | | | | | PR 2922 * time.c (_stp_init_time): call cpufreq_get for each cpu from a non-atomic context (module init time). * time.c (__stp_init_time): remove call to cpufreq_get from IPI. * time.c (__stp_time_timer_callback): disable IRQ's to avoid perturbations in measurements. * time.c (_stp_gettimeofday_us): disable preemption to avoid CPU swaps while we're computing the time.
* 2006-06-23 Josh Stone <joshua.i.stone@intel.com>jistone2006-06-231-6/+19
| | | | * time.c: Do cpufreq notification only if CONFIG_CPU_FREQ defined.
* 2006-06-21 Josh Stone <joshua.i.stone@intel.com>jistone2006-06-221-0/+184
runtime/ * time.c: Time-estimation with minimal dependency on xtime. runtime/transport/ * transport/transport.c (_stp_handle_start): Initialize timer functions. * transport.c (_stp_cleanup_and_exit): Teardown timer functions. tapset/ * timestamp.stp (gettimeofday_us, gettimeofday_ms, gettimeofday_s): Convert to using the runtime-provided _stp_gettimeofday_us().